. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus i. BORAGE FAMILY. 75 5- Heliotropium convolvulaceum (Nutt.) A. Gray. Bindweed Heliotrope. Fig. 3506. Euploca convolvulacea Nutt. Trans. Am. Phil. Soc. (II ) 5: 189. 1833-37. H. convolvulaceum A. Gray, Mem. Am. Acad. 6: 403 1857. ^ Annual, strigose-canescent, usually much branched, 6-15' high, the branches ascending. Leaves oblong, ovate, or lanceolate, en
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus i. BORAGE FAMILY. 75 5- Heliotropium convolvulaceum (Nutt.) A. Gray. Bindweed Heliotrope. Fig. 3506. Euploca convolvulacea Nutt. Trans. Am. Phil. Soc. (II ) 5: 189. 1833-37. H. convolvulaceum A. Gray, Mem. Am. Acad. 6: 403 1857. ^ Annual, strigose-canescent, usually much branched, 6-15' high, the branches ascending. Leaves oblong, ovate, or lanceolate, entire, short-petioled, obtuse or acute at the apex, narrowed at the base, i'-ii' long; flowers numerous, fragrant, very short-peduncled, terminal and lateral, mostly solitary and opposite the leaves; calyx-segments lanceolate, acuminate! equal; corolla white, strigose, 8"-io" long, about 6" broad, its tube narrowed at the throat, longer than the calyx and the angulate-lobed limb; anthers inserted on the tube of the corolla, slightly cohering by their tips; style filiform; stigma with a tuft of bristly hairs; fruit 2-lobed, pubescent, each lobe splitting into 2 i-seeded nutlets. In dry sandy soil, Nebraska to Texas, Utah and Mexico. July-Sept. 6. Heliotropium indicum L. Indian Helio- trope. Fig. 3507. Heliotropium indicum L. Sp. PI. 134. 1753. Annual, more or less hirsute or hispid; stem com- monly branched, i°-3° high. Leaves ovate or oval, obtuse or acute at the apex, obtuse rounded or sub- cordate at the base, 2'-& long, i'sV wide, repand or undulate, borne on margined petioles i'-2l' long; flowers blue, z"-3" broad, sessile in terminal dense bractless usually solitary scorpioid spikes which be- come 3'-6' long in fruit; calyx-segments lanceolate, acute, shorter than the strigose corolla-tube; style very short, deciduous; fruit deeply 2-lobed, glabrous, the lobes divergent, each finally splitting into 2 nutlets, each of which is ribbed on the bac
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
